Spool head



July 10, 1923.

v. GERO SPOOL HEAD Filed March 2l. 1922 mmw Patented duly .10, 1923. i

` srooL HEAD.,

` Appiiclfmmn sied Marfehauisea' 'seriaiiua-Siaiss.

To all whom t may concern:

Be it known that l, VICTOR GERo, a citi'- Aen of the United States, anda'resid'ent of Vihiladelphia, county of Philadelphia, y State ot Pennsylvania, have Yinvented certainlnevir and, useful Improvements in Spool Heads, of which the following'is a specification.

Some ofthe objectsyof the present inventionare to providey an improved head construction for spools or bobbins; to provide means for Y"overcoiiiing the delays and ex-v pense incident .to the breaking or displace` ment of the heads of spools or bobbins such for example as employed jin Axminster looms; to provide a spool head construction wherein the head isl rigidly secured lagainst` relative turning and axial movement on the body` of the spool; to provide a spool head having a tension spring bearing surface which iscapable of'vvithstanding the knocks and generalabuse to VWhich such a spool is subject; to provide a complete unitary lhead and cap arranged to be rigidly xed t'o the end of a spool body; yand to provide yother improvements'as will hereinafter; appear.

ln the accompanying-drawings, l? ig. 1 represents a side elevation, 'in part* section, ofa spool embodying-one form ofthe presenty invention; Fig. 2 yrepresents va perspective ,of the parts forming the end and head.

of the spool; and Fig. 3 represents an axial section of one end of the spool. vo

yReferring to the drawings, one, form the presentinvention` is here shown las applied to a spool body 10, of the type employed for weaving tufted ,fabrics such as Axminster rugs or the like, aii'dhaving an axially disposed groove 11 extending vthroughouty the length of the. body 10- for retaining 'the tufts in the ordinary manner. It will be understood,l however, that the invention. is not limited in 'use to the particular spool' body here shown, as this is only by vyay of example.

For thepurpose of 'providing meansto accurately locate the tuft frame (not shown) with respect tothe spool body 10 and also to prevent end `displacement of the tufts or other material carried by the body 10, two heads 12 and 13 are rovided, one for each end of the body 10. ach of these heads 12 and 13 is of greater diameter than the diameter of the body 10, and has a face recess 14 of the saine contour as the end of the body 10 and of a size to snugly receive the respective body ends. Thesel heads 12 and 13 are preferebly-.vof ivo'od, thoughariy material' l .suitablel forl the purpose 'can' be employed, andV provide4 respectively peripheral, circular faces 15Qand 16 for a purpose aslWill hereinafter appear'. A ,throught opening 17 tarea* isformed in each of the heads for the pjas- Y sage of the tuft retaini-ngmeans, and in i as sembled condition' l these openings 17` are-.in alinement With the body groom ,11, as Wm be understood. Y v

rigidly tothe-body', 10, each head is formed integralvvith ya stem or plug, the stemf20` of the head 12' being arranged to seat snugly with an axially disposed hole21 inftlije- -end of the-body 1.0, While thestenif22 'ofthe head n 13 is Varranged to similarly :ffityvi'thin` a likel hole `23 in the vother fend 'of the-body.' "In assembled ycondition the tivo stems-520 and are firmly hel'di'frespectively'by tfdo'vvel pins 2e-passing; transversely lthrough :the body 10 and :the lrespective stems '20 andf22. This forms a vpositivev interlocking connection to preventV relative turning of the; 'heads' ln `order tosecurethe heads 12` and 13 with respect tothe body'10,`-as vvvell7 a`s'ffp'ire- 1 A venting axial movement. Y

As a means Ato maintainv smooth circumferential `surface for the teni sion springs ofthe usual `tuft frames to -ride a uniformly upon headcaps'25 and 26 are providedfo'ne` y foreach headl 12 and 13,each cap beingfarfrictional engagement with the headkface 15 yor 16, as the casevmay bef In lprafzt-ice these caps 2,5 and` 26 are preferably made of metal'y and are forced on the*k heads 12 and 13 by pressure andthus'rh'ave such-a tight lit that relative1movement:isiiiiippssiblel `If rangedtofit overits headvvvi'ththe'flanged annular side portion or vrim 27 thereof in! desired, however, fand as` an additional safemay be also employed to maintain? the proper, relative position of the caps 25 and: l 26 upon they respective heads 12 and13.-

guard, fasteningjmeans, s uchas screwsr'f28,

openings 17 `to permit access to thev groove f f 11 from the spool ends aswillbe understood..l l j 1 A n i.' Y v In orderv to provide meansl for properly supporting the ends of the spool, it is Qp'reff -erable to employ a i stud 31 Which passes axially through the head'r12 and is j driven into one end of thebody l() until .a flange '32 of thestud 31 abutsthefouterwfaee oftheI iio y head 12 and leaves the pin portion 33 projecting axially through the cap 25. The opposite end of the body is provided with an axially located socket 311v to receive a similar stud 35 and its' flange 36, the socket 34 having a depth sufficient to permit the stud 35 to be moved inwardly far enough to bring its normally projecting pin 37 within the plane of the outer face of the cap 26. A spring 33 encircles the stud 35 and seats between the end of the socket 34: and the flange 36, and is normally under compression to maintain and return the pin 37 to its projecting position. y It will be unf derstood that the flange 36 in normal position abuts the inner face of the cap 26 while the pin 37 projects an operative distance through the cap.

In assembling the complete spool, the heads 12 and 13 are respectively fitted to the spool ends by inserting the stems and 22 in the respective holes 21 and 23, and then fasteningthem by driving in the dowels 24. The caps and 26 not only form a protection for the heads but become a part thereof which provides a solid rim of uniform diameter upon which the tension spring parts ride and one which is capable of resisting such blows as would dent or otherwise Adamage a head of ordinary construction. Furthermore, the rigid relation between the foresaid caps and their heads make vit impossible for the adjustment of the tuft frame to change, a feature which is of considerable importance. rIhe cap over the head, also, forms a means to prevent wear on that part of the head which is in contact with the pin, such wear being a source of constant trouble in spool heads as at present constructed because it causes the spool end to have an eccentric motion which causes an uneven pile and low rows in the fabric. By the present invention theportion of the metal cap encircling the pin entirely eliminates wear upon the head. While the preferred form of the invention embodies a cap arranged to fit over the spool head, it is to be understood the invention is not so specically limited as any form of rim and pin protecting meansy for a head is within the scope of the invention'in its broad aspect Furthermore the steml or plug is positively secured to the spool body so that differences in the wood, changes in atmospheric conditions, and the torque of the heads cannot cause loosenin of the plug or allow it to pull out when 1n use. v

lVhile only a single form is shownk in which this invention may be embodied, it is to be understood that the invention is not limited to any specifici construction, but might be applied in various forms without departing from the spirit of the invention or the scope of the appended claims.

Having thus described my invention, I claim: A

1. In a spool or bobbin, the combination of a spool body, a head arranged to be rigidly secured to said body, a protecting rim cireumferentially' arranged about said head, and a pin projecting axially through said head. l Y l 2. In a spool or bobbin, the combination of a spool body, a head having a stem interfitting with said body, means for fastening saidv stem to said body, a pin projectingk axially from said head, and 4a cap fitting over said head and pin and rigidly secured to said head. 4

3. In a spool or bobbin, the combination of a spool body, a head having a stem interfitting with said body, means for fastening said stem to said body, a spring pressed pin projecting axially from saidhead, and a cap' fitting over said head and pin and rigidly secured to said head.

4;. In a spool or bobbin, the combination of a spool body having a groove extending throughout the length thereof and an axially located socket, a head having a through opening located in alinement with said groove, an axiallyv disposed stem integral with said headand arranged tot tightly in said socket, means for rigidly securing said ystem and body together to prevent relative movement, and a pin mounted to project axially from said head.

Signed atPhiladelphia, in the county of Philadelphia, and State of Pennsylvania,

this 15th day of March, 1922. A

VICTOR GERO. 

